When marine organisms die and sink, billions of tons of organic and inorganic carbon are carried downward each year. The ...

Learn how bacteria inside marine snow may dissolve shell minerals and influence how the ocean stores carbon.

In some parts of the deep ocean, it can look like it's snowing. This "marine snow" is the dust and detritus that organisms slough off as they die and decompose. Marine snow can fall several kilometers ...

Bacteria hitchhiking on marine snow can dissolve its calcium carbonate ballast, slowing the particles’ descent.

CO2 levels are altering the chemical makeup of human blood over time, and may lead to health problems down the road. | Credit ...

Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that figure sits above 420 ppm, higher than at any point in the history of our ...

The rise of carbon dioxide (CO 2) in Earth's atmosphere is detectable and measurable in the blood of its human inhabitants, a ...

A new study suggests rising carbon-dioxide levels may be slowly changing human blood chemistry and could impact long term ...